Electrochemical characterization of rapidly solidified Al-(Cr,Cu,Ni,Y,Zr)-Fe alloys

Structure and selected properties of Al–Cr–Fe alloys with the presence of structurally complex alloy phases

“…Based on the phase analysis provided by the XRD method presented in 20 , the Al 65 Cr 20 Fe 15 alloy was characterized by a binary phase structure (ingot: Al 65 Cr 27 Fe 8 (SCAP) + Al 12.59 Fe 6.41 , plate: Al 65 Cr 27 Fe 8 (SCAP) + Al 5.6 Fe 2 ), and the Al 71 Cr 24 Fe 5 alloy, a multiphase (ingot: Cr + Al 65 Cr 27 Fe 8 (SCAP) + Al 8.26 Cr 4.74 + Al 2 Cr + Fe 2 CrAl + Al 8 Cr 5 + Al 45 Cr 7 , plate: Cr + Al 65 Cr 27 Fe 8 (SCAP) + Al 8.26 Cr 4.74 + Al 2 Cr + Fe 2 CrAl + Al 8 Cr 5 + Al 45 Cr 7 ). The presence of the identified phases in the structure for the ingots was confirmed by the analysis of the neutron diffractograms in Fig.…”

“…The corrosion resistance of Al–Cr–Fe alloys was reported in the paper 20 . Electrochemical measurements of the open circuit potential as a function of time and potentiodynamic polarization curves were recorded in a 3.5% NaCl aqueous solution at a temperature of 25 °C.…”

“…Ingots produced with a weight of 50 g were remelted and cast with an increased cooling rate from a liquid state under pressure (high-pressure die casting method with a cooling rate ~ 10 3 K/s) to a water-cooled copper mold (90 × 80 × 45 mm) in the form of plates (30 × 10 × 1 mm). X-ray diffraction, light microscopy observations, Mössbauer spectroscopy, differential scanning calorimetry, and electrochemical measurements were described for these alloys in an earlier publication 20 .…”

“…The purpose of the work was to provide detailed structural studies of the Al 65 Cr 20 Fe 15 and Al 71 Cr 24 Fe 5 alloys produced with two different cooling rates from the liquid state. In addition to the earlier work 20 , these alloys have not been described in terms of structure so far. Moreover, there is still a few experimental data that confirm the interesting properties of Al–Cr–Fe alloys with the CMAs, especially with binary and multiphase structure 4 , 5 .…”

ПОРІВНЯЛЬНИЙ АНАЛІЗ КОРОЗІЇ В КИСЛОТАХ ІКОСАЕДРИЧНИХ І ДЕКАГОНАЛЬНИХ КВАЗІКРИСТАЛІВ У СПЛАВАХ НА ОСНОВІ Al

“…Зазвичай, корозійні властивості залежать від хімічного складу та мікроструктури сплавів [7][8][9][10]. Відкриття квазікристалів створює нові можливості для розробки корозійнотривких покриттів [11][12][13][14]. Квазікристали відносять до нового класу матеріалів, які мають аперіодичний кристалографічний порядок [15][16][17].…”